import assert from 'node:assert/strict';
import { existsSync, readFileSync } from 'node:fs';
import { Buffer } from 'node:buffer';
import ts from 'typescript';

const moduleUrl = new URL('../server/src/utils/platformWorkCover.ts', import.meta.url);

assert.ok(
  existsSync(moduleUrl),
  'server/src/utils/platformWorkCover.ts should export platform work cover helpers',
);

const source = readFileSync(moduleUrl, 'utf8');
const { outputText } = ts.transpileModule(source, {
  compilerOptions: {
    module: ts.ModuleKind.ES2022,
    target: ts.ScriptTarget.ES2022,
  },
});

const dataUrl = `data:text/javascript;base64,${Buffer.from(outputText, 'utf8').toString('base64')}`;
const { extractPlatformWorkCoverUrl, normalizePlatformImageUrl } = await import(dataUrl);

assert.equal(normalizePlatformImageUrl('//example.com/a.jpg'), 'https://example.com/a.jpg');
assert.equal(normalizePlatformImageUrl('  http://example.com/a.jpg?x=1  '), 'http://example.com/a.jpg?x=1');
assert.equal(normalizePlatformImageUrl('not-a-url'), '');

assert.equal(
  extractPlatformWorkCoverUrl({
    cover_images: '[{"src":"//bjh.example.com/cover-a.jpg"},{"src":"//bjh.example.com/cover-b.jpg"}]',
  }),
  'https://bjh.example.com/cover-a.jpg',
);

assert.equal(
  extractPlatformWorkCoverUrl({
    coverImage: { imageUrl: 'https://bjh.example.com/cover-c.jpg' },
  }),
  'https://bjh.example.com/cover-c.jpg',
);

assert.equal(
  extractPlatformWorkCoverUrl({
    objectDesc: {
      mediaList: [
        {
          coverUrl: 'https://wx.example.com/post-cover.jpg',
        },
      ],
    },
  }),
  'https://wx.example.com/post-cover.jpg',
);

assert.equal(
  extractPlatformWorkCoverUrl({
    mediaSpec: {
      coverUrl: '//wx.example.com/media-cover.jpg',
    },
  }),
  'https://wx.example.com/media-cover.jpg',
);

assert.equal(
  extractPlatformWorkCoverUrl({
    desc: {
      media: [
        {
          thumbUrl: 'https://wx.example.com/desc-media-thumb.jpg',
          coverUrl: 'https://wx.example.com/desc-media-cover.jpg',
        },
      ],
    },
  }),
  'https://wx.example.com/desc-media-cover.jpg',
);

assert.equal(
  extractPlatformWorkCoverUrl({
    title: 'no image here',
    author: { avatarUrl: 'https://example.com/avatar.jpg' },
  }),
  '',
);

console.log('platform work cover extraction checks passed');